package com.sskj.trafficcontrol.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;

/**
 * 跨域
 **/
@Configuration
public class CorsConfig {
    //根据配置文件来判断是否开启跨域访问
    /*@Value("${custom.flag}")
    private boolean flag;*/

    @Bean
    public CorsFilter corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration corsConfiguration = new CorsConfiguration();
        //“*”代表全部。”**”代表适配所有接口。
        corsConfiguration.addAllowedOrigin("*");// 1 设置访问源地址
        corsConfiguration.addAllowedHeader("*");// 2 设置访问源请求头
        corsConfiguration.addAllowedMethod("*");// 3 设置访问源请求方法
        source.registerCorsConfiguration("/**", corsConfiguration);// 4 对接口配置跨域设置
        return new CorsFilter(source);
    }
}
